[Python-Dev] Re: PEP 336, "Make None Callable",
by Andrew McClelland
tim.peters at gmail.com
Thu Nov 4 04:25:41 CET 2004
>> None should be a callable object that when called with any
>> arguments has no side effect and returns None.
> My response to this is simply "yuck". This is a hack, abd I
> don't think it's worthwhile.
Maybe it's not a coincidence that it's listed in the PEP index next to
"Reject Foolish Indentation" <0.9 wink>.
IMO, it's worse than not worthwhile: it would be actively bad to
TypeError: 'NoneType' object is not callable
is a frequent runtime occurrence now, and performs a valuable service
when it happens by correctly pointing out a programming error.
Python's None isn't meant to be neutral -- it's meant to mean "nothing
is there", and supplying nothing where something is required is a
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